Bucket trap



Aug. 23,1927. 1,640,115

F. EIGE 1 BUCKET TRAP Filed NovLlz, 1923 Patented Aug. 23, 1927.

UNITED STATES PATENT OFFICE.

FALTEN EIGE, OF TORONTO, CANADA, ASSIGNOR TO C. A. DUNHAM COMPANY, OF MARSHALLTOIVN, IOWA, A CORPORATION OF IOWA.

BUCKET TRAP.

Application filed November 12, 1923. Serial No. 674,329.

My invention relates to bucket traps of the type adapted for the removal of condensate from fixtures and steam lines where high pressure steam is used and where large amounts of condensate accumulate, although it is also suitable for use where low pressure steam is employed, as well as for the removal of water or other liquid from any receptacle which contains air or other gas under pressure.

It is the principal object of my invention to provide a new and improved form and arrangement of parts, with particular reference to the form of the bucket, by which the closing of the valve for stopping the intermittent discharge from the trap is edected very quickly and positively; and to improve devices of this type in sundry details hereinafter pointed out.

The preferred means by which I have accomplished my several objects, are illustrated in the drawing and are hereinafter specifically described. 'Ihat which I believe to be new and desire to cover by this application is set forth in the claim.

In the drawing:

Fig. 1 is a central vertical section through by improved trap.

Fig. 2 is a perspective view of the valve member; and

Fig. 3 is a perspective view, partly in section, showing the form of the valve seat.

Referring to the several figures of the drawing, in which corresponding parts are indicated by the same reference characters, indicates a casing closed at its upper end by cover plate 11, the two together comprising a closed tank, with a pipe 12 leading into the tank at one side for delivering condensate to the tank from some container for steam or other fluid under pressure. A baille plate 13 depends from the cover plate 11 opposite the opening of the pipe 12 into the tank. The cover plate 11 is provided with a discharge port in which there is mounted by means of screw threads a cage 14.- for the purpose hereinafter described. A cap 15 is removably secured over the cage 14, and a transversely disposed duct 16 is provided in the cover plate 11 in communication with the interior of the cap 15 and having connected thereto a pipe 17 for the condensate discharged from the tank. The casing '10, the cover plate 11, and the cap 15, are preferably made in the form of castings,

and are removably secured together in any appropriate manner.

Within the closed tank comprising the casing 10 and the cover plate 11, there isV pivotally mounted a bucket 18, which is also preferably in the form of a casting, the bucket 18 having a downward extension 19 at one side thereof adjacent to the pivotal axis 20 upon which the bucket is pivotally mounted on a horizontal. axis upon arms 21 depending from the baffle plate 13. A discharge tube 22, which in the construction shown is formed integrally with the cover plate 11 extends downwardly about the discharge port in the cover plate 11 to substantially the lowermost point within the downward depression 19 of the bucket. being open at its lower end. A valve rod 23 is pivotally connected with the bucket 18 with- -in the downward projection 19, such connection being effected by the use of a bolt 24 through which the valve rod 23 is pivotally connected. The valve rod 23 extends upwardly through the discharge tube 22 and is provided at its upper end with a sleeve 25 secured thereon by means of screw threads, a lock nut 26 being provided upon the valve rod 23 for tightening the sleeve 25 in adjustedposition thereon. The sleeve 25 is made in the form of a casting, having pins 27 secured in radial position thereon for holding the sleeve 25 in centered position with respect to the cage 14 into which the sleeve extends. In the upper end of the sleeve 25, there is removably secured a valve L 28 which is held in position by a pin 29 extending loosely through openings in the valve and in the sides of the sleeve, the pin 29 being normally held in position by the cage 14. The valve 28 is tapered at both A ends for proper effective engagement at either end with a valve seat which is removably secured within the upper end of the cage 14 by means of a screw threaded sleeve 31. As is clearly shown in Fig. 3, the seat member 8O is similarly formed on its opposite faces, so that the seat 30 is reversible for effective operation in either of its two adjusted positions. The construction is such thatl when the valve 28 in its raised position engages the opening through the seat member 30, the discharge port is effectively closed.

With the tank connected up in the manner above described so as to have a fluid prcssurc upon the interior oi' the tank. zuid with the bucket i8 containing only c sinall quantity oit wuter as illustrated in Fig. l, and being` accordingly held .by buoyancy in its raised position es shown in solid lines in Fig. l, the tank receives the condensate `troni the pipes, the engagement ot the valve 2S with its seat member 30 serving to lli it the upwzu'd nioifenient ot the bucket llvheu the waiter in the t-enk reaches u sutieiently high level, it overtlows into the bucket 18. i lVhen the level of the writer in the bucket 13 approaches the level ot the writer within the tank on the outside of vthe bucket, the buoyzi cy ot the bucket is gruduelly decreased and yiiruilly overcome, whereupon ,the bucket sinks to the position shown in dotted lines in said ligure, U" this niovernent of the bucket, the valve is of course inoved downwardly awcy t om its sent, whereupon the pressure within the tank forces the weiter upwardly through the discharg'e tube E32 and out through the pipe if?. illhen the water in the tank has thus been lowered to the level delined by the upper edgge of the bucket 18 it the point 3Q in Fig. l, the water cnn then no longer be lowered in the space in the tank about the bucket 18, but the level .ot the writer within the bucket continues to go downwardly. liilhen thereafter the level of the water within the bucket reaches substantially the suine level as that of the bottoni ot the buclze; is shown in dotted lines in l, the buoyancy ot the bucket tig-ain ovencouies the weight et the bucket and the contained waiter so es to cause the bucket to rise. lncstnuch the stop Bl carried by the casing,v l prevents the bottom 33 ot the bucket i8 Atroni moving downwardly hbeyond o. substantially horizontal position, it will be un dostood that :it substantially tl e start ot trie upward movement oi the bucket i8 the entire liquid contents ot the buclvet caused to gather quickly within the down wi'f'fl extension 19. rll's ot the water within the bucket toward 'the pivotul exis ot' the lnicket intresses quito materiell-v the effective buofmncj,vv ot nicket, with the result tuut the bucket very quickly and positively to 'its upper most position shown in solid lines in lic. l. serving); to effect quick and posit f closing` ot the valve for stopping` the escape of the water from the tank So .tar es l ein aware, l un the first in inoins sealed by c body of waiter in the downward depression oi' the bucket.

yUffliile l prefer to enr-ploy the forni ot construction illustrated in the drawingund above described, it will be understood that l do not wish ,to liinit inyselt to the use oi lthe detailed iorin ot construction described eric-ep so for such detailed construe be specifically cls-lined, inasmuch :is i

is ,evident that many changes might l ine-de in the lconstruction without departing lrozn Jlhe spirit of rny invention.

l claim:

i trap comprising n closed tank, s loing` l .ow bucket open at the top and having u do'wn\=.fzird elfi'tension adjacent one end, the bucket being pivoted in tl e tank .on ,a horizontal axis adjacent the bottom ot the downward extension, :i discharge tube .depending into the bucket und opening` at .the bottoni into tle i oivnward extension b low the level or .the remaining portion ot the bottoni ot tile bucket whereby u water `see-l is provided for the discharge tube in ull positions of the bucket, a valve tor openii und closing said discharge tube, connections between the bucket and valve for ,opening the vulve by the downward movement ot the bucket and closing the valve when the bucket moves upwardly, and means for li iting the downward movement of the but et .et u point where the bottom .of the nin or FALTEN flic-TE. 

